Jacqueline Mars, $27 Billion
Jacqueline Mars looks every bit the image of a mature candy heiress. Of excellent, sugary breeding - Mars, Inc. is the world's largest candy maker - and impeccable schooling, Jacqueline's a trustee of The US Equestrian Team, and sits on the board of The Washington National Opera and National Sporting Library and Fine Arts Museum. A leisurely life your M&M habit has bought.